/* ── Story page ────────────────────────────────────────────── */
.story { position: relative; background: var(--black); color: var(--silver-2); overflow: hidden; padding: 9rem 0 8rem; }
.story-bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; display: flex; align-items: center; justify-content: center; }
.story-silhouette { width: min(130vw, 1100px); height: auto; opacity: 0.16; filter: brightness(0.35) contrast(1.1); will-change: transform, opacity; }
/* JA / EN: 本文に重ならないよう右下に固定(背景付き) */
.story-lang { position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 5; display: flex; align-items: center; gap: 0.4rem; padding: 0.45rem 0.9rem; border: 1px solid var(--border-light); background: rgba(0,0,0,0.78); backdrop-filter: blur(8px); font-family: var(--font-display); font-size: 0.7rem; letter-spacing: 0.2em; }
.story-lang-btn { color: var(--silver-6); padding: 0.3rem 0.2rem; border-bottom: 1px solid transparent; transition: var(--transition); }
.story-lang-btn.is-active { color: var(--silver-1); border-bottom-color: var(--silver-3); }
.story-lang-sep { color: var(--silver-7); }
.story-head, .story-body { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; padding: 0 1.5rem; text-align: center; }
.story-body { display: none; }
.story[data-lang="ja"] .story-body-ja, .story[data-lang="en"] .story-body-en { display: block; }
.story-head { margin-bottom: 12vh; }
.story-head-logo { margin: 0 auto 1.6rem; }
.story-head-logo img { display: block; width: min(60vw, 320px); height: auto; margin: 0 auto; }
.story-head-2 { font-family: var(--font-serif); font-style: italic; font-size: clamp(0.95rem, 2.2vw, 1.2rem); letter-spacing: 0.12em; color: var(--silver-4); margin-bottom: 0.6rem; }
.story-head-3 { font-size: 0.85rem; letter-spacing: 0.25em; color: var(--silver-5); }
/* 1行ずつの表示 */
.story-line { opacity: 0; transform: translateY(26px); transition: opacity 1.1s ease, transform 1.1s ease; will-change: opacity, transform; }
.story-line.is-in { opacity: 1; transform: translateY(0); }
.story-line.is-past { opacity: 0.22; transform: translateY(-6px); transition: opacity 1.6s ease, transform 1.6s ease; }
.story.is-static .story-line { opacity: 1; transform: none; transition: none; }
.story-text { font-size: clamp(1rem, 2.4vw, 1.15rem); line-height: 2.3; color: var(--silver-3); margin: 0 0 14vh; text-wrap: balance; }
.story-body-en .story-text { font-family: var(--font-serif); font-size: clamp(1.1rem, 2.6vw, 1.3rem); line-height: 2; }
.story-title { font-family: var(--font-display); font-size: clamp(2.2rem, 7vw, 3.4rem); letter-spacing: 0.4em; color: var(--silver-1); margin: 0 0 1.5rem; }
.story-tagline { font-family: var(--font-serif); font-size: clamp(1.1rem, 3vw, 1.5rem); letter-spacing: 0.15em; color: var(--silver-2); margin: 0 0 1.2rem; }
.story-tagline:last-of-type { margin-bottom: 22vh; }
.story-chapter { font-family: var(--font-serif); font-size: clamp(1.35rem, 3.6vw, 1.9rem); letter-spacing: 0.12em; color: var(--silver-1); margin: 0; }
.story-body-en .story-chapter { font-family: var(--font-display); font-size: clamp(1.1rem, 3vw, 1.5rem); letter-spacing: 0.25em; }
.story-big { font-family: var(--font-serif); font-size: clamp(1.7rem, 5.5vw, 2.6rem); letter-spacing: 0.12em; line-height: 1.8; color: var(--silver-1); min-height: 70vh; display: flex; align-items: center; justify-content: center; margin: 0 0 8vh; }
.story-body-en .story-big { font-style: italic; }
.story-gap { height: 34vh; }
.story-gap-sm { height: 14vh; }
.story-closing-title { font-family: var(--font-display); font-size: clamp(2.2rem, 7vw, 3.4rem); letter-spacing: 0.4em; color: var(--silver-1); margin: 30vh 0 2rem; transition-duration: 2s; }
.story-closing { font-family: var(--font-serif); font-size: clamp(1.25rem, 3.4vw, 1.7rem); letter-spacing: 0.15em; line-height: 2; color: var(--silver-1); margin: 0 0 1.4rem; transition-duration: 2.2s; }
.story-closing:first-of-type { margin-top: 30vh; }
.story-sign { font-family: var(--font-display); font-size: 0.85rem; letter-spacing: 0.35em; color: var(--silver-4); margin: 4rem 0 0; transition-duration: 2.6s; transition-delay: 0.3s; }
.story-signature { margin: 2rem 0 0; line-height: 0; transition-duration: 2.6s; transition-delay: 0.5s; }   /* 森友嵐士のサイン(ARASHI MORITOMO の下) */
.story-signature img { width: 360px; max-width: 100%; height: auto; display: block; margin: 0 auto; opacity: 0.9; }
@media (max-width: 600px) {
  .story { padding: 7.5rem 0 5rem; }
  .story-lang { right: 1rem; bottom: 1rem; }
  .story-head, .story-body { padding: 0 1.25rem; }
  .story-head { margin-bottom: 8vh; }
  .story-head-2 { font-size: 1rem; }
  .story-head-3 { font-size: 0.8rem; letter-spacing: 0.2em; }
  /* 本文: 16.5px / 行間 1.9 / 字間 0.02em に統一。段落間は 7vh */
  .story-line { text-wrap: balance; }
  .story-text, .story-body-en .story-text { font-size: 16.5px; line-height: 1.9; letter-spacing: 0.02em; margin-bottom: 7vh; }
  .story-tagline { font-size: 1.15rem; margin-bottom: 1rem; }
  .story-tagline:last-of-type { margin-bottom: 12vh; }
  /* 見出し */
  .story-chapter, .story-body-en .story-chapter { font-size: 1.35rem; letter-spacing: 0.12em; }
  .story-gap { height: 16vh; }
  .story-gap-sm { height: 8vh; }
  /* 短い一文: 1画面占有ではなく、前後に少し大きめの余白 */
  .story-big { font-size: 1.6rem; min-height: 0; display: block; margin: 4vh 0 11vh; line-height: 1.8; }
  /* 末尾 */
  .story-closing:first-of-type { margin-top: 18vh; }
  .story-closing { font-size: 1.1rem; letter-spacing: 0.12em; line-height: 1.9; margin-bottom: 1.2rem; white-space: nowrap; }   /* 末尾の2文を1行に */
  .story-sign { margin-top: 2.5rem; }
  .story-signature img { width: min(80vw, 360px); }
}
}
@media (prefers-reduced-motion: reduce) {
  .story-line { opacity: 1 !important; transform: none !important; transition: none !important; }
  .story-silhouette { transform: none !important; opacity: 0.12 !important; }
}